Answer:
A-The CNS and the peripheral nervous system.
Explanation:
A friend that's not him :) since you gave us one choice, taking diet pills are a a type of fad diet, and usually have bad side effects. plus taking supplements is never a good idea
Nervousness ("butterflies") before a presentation or job interview could be an example of good stress. This causes your breathing and heartrate to increase which sends more blood to your brain, coursing you to focus more.
